text: """
  Functions module of Blob Creator
  
  Author: Michael Kohlegger
  Date: 2021-09
  """
  
  def dictionary_filter(dictionary, cols) -> dict:
      """Can be used to filter certain keys from a dict
  
      :param dictionary: The original dictionary
      :param cols: The searched columns
      :return: A filtered dictionary
      """
      return {key:value for (key,value) in dictionary.items() if key in cols}
  